Patent US3585573A successfully refreshed from Google Patents.
US3585573A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sliding electrical contact
Assignee: Bunker Ramo Corp
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Filing: 1968-10-17
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Granted: 1971-06-15
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Expires: 1988-10-17
Abstract
Abstract A sliding electrical contact having a contact button on an arm in which transfer of material from the arm to the button by a wiping action during operation is prevented by recessing or cutting away the part of the arm from which wiping occurs or lifting it clear of the wiping surface by means of projections on the arm.
Inventors
- 👤 Norman Robshaw
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 06:47
CPC Classifications
H; H01; H01H; H01H1/00; H01H1/12; H01H1/36; H01R; H01R12/00; H01R12/70; H01R12/71; H01R12/72; H01R12/721; H01R13/00; H01R13/02
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
81 words
A sliding electric contact comprising an arm carrying a contact button and having means for reducing transfer of the material forming the surface of said arm onto the surface of said button during sliding of the contact on a slidable surface comprising means for substantially preventing contact during sliding between that portion of said slidable surface which is aligned with said contact button along the line of sliding and any surface on said arm other than that of said contact button.
Claim 2
Dependent Claim
81 words
A sliding electric contact comprising an arm carrying a contact button and having means for reducing transfer of the material forming the surface of said arm onto the surface of said button during sliding of the contact on a slidable surface comprising means for substantially preventing contact during sliding between that portion of said slidable surface which is aligned with said contact button along the line of sliding and any surface on said arm other than that of said contact button.
Claim 3
Dependent Claim
37 words
A sliding electrical contact as claimed in claim 1, wherein the means for substantially preventing contact comprise an indentation in said arm, said indentation being positioned in alignment with said contact button along said line of sliding.
Claim 4
Dependent Claim
36 words
A sliding electrical contact as claimed in claim 1, wherein the means for preventing contact comprise a hole through said arm, said hole being positioned in alignment with said contact button along said line of sliding.
Claim 5
Dependent Claim
37 words
A sliding electrical contact as claimed in claim 1, wherein the means for substantially preventing contact comprise a projection carried on said arm and positioned out of alignment with said contact button along said line of sliding.
Claim 6
Dependent Claim
47 words
A sliding electrical contact as claimed in claim 4, wherein two projections are carried on said arm, each positioned out of alignment with said contact button along said line of sliding, one on each side of the line of sliding of said portion of said slidable surface.
Claim 7
Dependent Claim
29 words
A sliding electrical contact as claimed in claim 1 wherein the material forming the surface of said arm is different from the material forming the surface of said button.
Claim 8
Dependent Claim
31 words
A sliding electrical contact as claimed in claim 6 wherein the surface of said button is a noble metal and the surface of said arm is other than a noble metal.
Claim 9
Dependent Claim
24 words
A sliding contact in accordance with claim 7 wherein the surface of said button is gold and the surface of said arm is tin.
Claim 10
Dependent Claim
112 words
In an electrical connector having a sliding contact comprising an arm and a contact button on said arm, the material on at least the surface of said contact button being different from the material on at least the surface of said arm, and a contact surface cooperating with said sliding contact, the improvement comprising means for substantially preventing contact during sliding between that portion of the said contact surface which is aligned with said contact button along the line of sliding and any surface on said arm other than that of said contact button, whereby transfer of material from the surface of said arm to the surface of said button is reduced.
Claim 11
Dependent Claim
112 words
In an electrical connector having a sliding contact comprising an arm and a contact button on said arm, the material on at least the surface of said contact button being different from the material on at least the surface of said arm, and a contact surface cooperating with said sliding contact, the improvement comprising means for substantially preventing contact during sliding between that portion of the said contact surface which is aligned with said contact button along the line of sliding and any surface on said arm other than that of said contact button, whereby transfer of material from the surface of said arm to the surface of said button is reduced.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-06-14 | 1974-12-14 | 1975-06-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-14 | 1978-12-14 | 1979-06-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-14 | 1982-12-14 | 1983-06-15 | $7700.00 | Window Closed / Lapsed |